20020+0257 HEI 818 (HD 357703)
20h 02m 00.21s +02° 56' 31.6" P.A. 24.00 sep 2.1 mag 10.80,11.40 Sp A3
| Coord 2000 |
20020+0257 |
|
Discov num |
HEI 818 |
|
Comp |
|
|
Coord arcsec 2000 |
20 02 00.21 +02 56 31.6 |
|
| Date first |
1990 |
|
Date last |
2016 |
|
Obs |
4 |
|
| Pa first |
27 |
|
Pa last |
23.7 |
|
P.A. Now (θ) |
23.7° |
|
| Sep first |
1.4 |
|
Sep last |
2.074 |
|
Sep. Now (ρ) |
2.074" |
|
| Mag pri |
10.80 |
|
Mag sec |
11.40 |
|
delta mag (ΔM) |
0.6 |
|
Spectral class |
A3 (white) |
|
| Pri motion ra |
-008 |
|
Sec motion ra |
|
|
| Pri motion dec |
-011 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 357703 |
|
Constellation |
Aquila |
|
Tycho2 |
0498-02042-1 |
|
Gaia DR2 |
4246984715951186816 |
|
| HD |
357703 |
|
